Am I able to buy any of the bottles that already have the flex straw lid on them or do I have to buy that lid separately?

You are able to buy bottles that already come with a flex Straw cap, but for the availability of those units, you need to check with a dealer directly. Your Hydro Flask team.

Why does it state flex cap as being ‘girls’?

No idea. This came with a twist cap and it is fine. I use sports bottles with different caps for when in the gym etc. The hydroflask is a really solid design.

What diameter is the base

Hello, The diameter of both the 18 Ounce and 21 ounce Standard mouth bottle is 2.87 Inches or 7.29 centimetres.

Hi how do I know if it is legitimate?

it is legit, it's a great flask

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

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Hydro Flask Water Bottle

Product ID: 478729013

Details

Brand
Hydro Flask
Capacity
21 Fluid
Colour
Black
Recommended uses for product
Water
Special feature
Dishwasher

💧Leak-proof Flex Straw Lid

🔥Keeps drinks hot 12h

❄️Keeps drinks cold 24h

¥12957

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

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Description

💼 Hydrate like a boss—cool, hot, and always ready for your next move.

CLEAN LESS LIVE MORE - Powder-coated finish makes dishwasher cleaning a breeze—more time for what matters.
CONFIDENCE IN EVERY SIP - Lifetime warranty backs your Hydro Flask, because quality is non-negotiable.
BUILT TO BRAVE YOUR HUSTLE - Durable, eco-friendly stainless steel withstands daily grind without compromising taste.
SIP EFFORTLESSLY ON THE GO - Leak-proof Flex Straw Lid lets you hydrate with one hand, perfect for busy professionals.
STAY CHILL OR SIZZLE ALL DAY - Double-wall vacuum insulation locks in your ideal temperature—cold for 24 hours, hot for 12.

The Hydro Flask Standard Flex Straw Bottle (621 ml) features double-wall vacuum insulation with TempShield technology to keep beverages cold for 24 hours or hot for 12 hours. Its leak-proof flexible straw lid enables easy one-handed drinking, while the durable stainless steel construction and powder-coated finish ensure long-lasting use and easy cleaning. Backed by a lifetime warranty, this bottle is designed for active professionals who demand performance and style.

Specifications

ASIN	B0FL94YZF6
Age Range Description	Adult
Age range (description)	Adult
Best Sellers Rank	9,602 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 706 in Canteens & Water Bottles
Brand	Hydro Flask
Brand Name	Hydro Flask
Capacity	621 ml
Colour	Beachplum
Customer Reviews	4.8 out of 5 stars 2,632 Reviews
Included Components	1 drinking vessel / accessory
Item Dimensions W x H	8W x 27H centimetres
Item Type Name	Standard Flex Straw Bottle
Item Weight	0.43 Kilograms
Manufacturer	Hydro Flask
Material Type	Stainless Steel
Model Name	Standard Flex Straw Bottle
Number of Items	1
Recommended Uses For Product	Water
Recommended uses for product	Water
Special Features	Tempshield Technology, Leak-Proof Flexible Straw Lid, Durable
Special feature	Tempshield Technology, Leak-Proof Flexible Straw Lid, Durable
Theme	Seascape
UPC	840394214269
Unit Count	1.0 count
With Lid	Yes

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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Received my product in pristine condition. Great service overall.

1 month ago

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¥12957

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

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